DeepSeek V4 Pro vs o3 Mini
DeepSeek V4 Pro (2026) and o3 Mini (2025) are frontier-tier reasoning models from DeepSeek and OpenAI. DeepSeek V4 Pro ships a 1M-token context window, while o3 Mini ships a not-yet-sourced context window. On MMLU PRO, DeepSeek V4 Pro leads by 8.4 pts. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit. It focuses on practical selection signals rather than broad model-family marketing.
DeepSeek V4 Pro is safer overall; choose o3 Mini when coding workflow support matters.
Specs
| Released | 2026-04-24 | 2025-03-31 |
| Context window | 1M | — |
| Parameters | 1.6T | — |
| Architecture | mixture of experts | decoder only |
| License | MIT | Unknown |
| Knowledge cutoff | - | 2025-04 |
Pricing and availability
| DeepSeek V4 Pro | o3 Mini | |
|---|---|---|
| Input price | - | $1.1/1M tokens |
| Output price | - | $4.4/1M tokens |
| Providers | - |
Capabilities
| DeepSeek V4 Pro | o3 Mini | |
|---|---|---|
| Vision | ||
| Multimodal | ||
| Reasoning | ||
| Function calling | ||
| Tool use | ||
| Structured outputs | ||
| Code execution |
Benchmarks
| Benchmark | DeepSeek V4 Pro | o3 Mini |
|---|---|---|
| MMLU PRO | 87.5 | 79.1 |
| Google-Proof Q&A | 90.1 | 79.7 |
Deep dive
On shared benchmark coverage, MMLU PRO has DeepSeek V4 Pro at 87.5 and o3 Mini at 79.1, with DeepSeek V4 Pro ahead by 8.4 points; Google-Proof Q&A has DeepSeek V4 Pro at 90.1 and o3 Mini at 79.7, with DeepSeek V4 Pro ahead by 10.4 points. The largest visible gap is 10.4 points on Google-Proof Q&A, which matters most when that benchmark mirrors your workload. Treat isolated benchmark wins as directional, because provider routing, prompt style, and tool access can move real application results.
The capability footprint differs most on code execution: o3 Mini. Both models share reasoning mode, function calling, tool use, and structured outputs, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
Pricing coverage is uneven: DeepSeek V4 Pro has no token price sourced yet and o3 Mini has $1.1/1M input tokens. Provider availability is 0 tracked routes versus 3. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose DeepSeek V4 Pro when provider fit are central to the workload. Choose o3 Mini when coding workflow support and broader provider choice are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship.
FAQ
Is DeepSeek V4 Pro or o3 Mini open source?
DeepSeek V4 Pro is listed under MIT. o3 Mini is listed under Unknown. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for reasoning mode, DeepSeek V4 Pro or o3 Mini?
Both DeepSeek V4 Pro and o3 Mini expose reasoning mode. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Which is better for function calling, DeepSeek V4 Pro or o3 Mini?
Both DeepSeek V4 Pro and o3 Mini expose function calling. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Which is better for tool use, DeepSeek V4 Pro or o3 Mini?
Both DeepSeek V4 Pro and o3 Mini expose tool use. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Which is better for structured outputs, DeepSeek V4 Pro or o3 Mini?
Both DeepSeek V4 Pro and o3 Mini expose structured outputs. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Where can I run DeepSeek V4 Pro and o3 Mini?
DeepSeek V4 Pro is available on the tracked providers still being sourced. o3 Mini is available on OpenRouter, OpenAI Batch API, and Azure OpenAI. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-04-24. Data sourced from public model cards and provider documentation.